Chen Ge reread the series of messages sent by Lee Zheng. The usage of punctuation and the overall tone were indeed a variation from how the inspector would usually communicate via messages. The monster described by Jia Ming in the messages was familiar with changing with its appearance and voice; in other words, it would be able to mimic Lee Zheng's voice perfectly. However, since Chen Ge could not answer the call because he was on the hearse, Lee Zheng could only use written messages to communicate with Chen Ge. This was probably a contingency that the other party would not anticipate before making the call.
Could it really be Jia Ming who is sending messages with me?
